OSG Spiral Flute Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-218757
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Frequently Asked Questions
What is an OSG spiral flute tap used for?
An OSG spiral flute tap is used for threading blind holes in steel and stainless steel. Its spiral design pushes chips upward and out of the hole, preventing chip clogging and ensuring clean threads. This makes it ideal for production tapping in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG 7/16"-14 UNC spiral flute tap?
This OSG tap has a 7/16"-14 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is designed for threading blind holes in steel and stainless steel. The manufacturer part number is 1645076143.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source genuine OSG cutting tools and can quote for this 7/16"-14 UNC spiral flute tap. Contact us for pricing and lead time.
How to select the right spiral flute tap for steel?
Select a spiral flute tap based on thread size, pitch, and hole type. For blind holes in steel, use a modified bottoming chamfer like this OSG tap. Match the tap tolerance (H3) to the required thread class (2B-3B). Ensure the tap material is suitable for the workpiece hardness. Consult OSG's technical data for optimal speeds and feeds.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















